BACKGROUND:Deep within Bowser's body is a colosseum called the challenge node which is like an area where the Mario Brothers could fight strong foes created from their memories. Durmite X was one of those. Although much more powerful than the regular Durmite, Durmite X was still relatively weak.
Even though Durmite X is stronger he's very jealous of his brother Durmite because Durmite is a sage!